Research by the writer's purpose is to know the correct use and the cost of the inventories at PT. Iga Binamix Pekanbaru. Knowing and inventory systems for inventory valuation methods applied to the PT. Natiotama Heritage Corporation Pekanbaru. And knowing presentation of inventory information on PT. Iga Binamix Pekanbaru. From the research it was found that the determination of the cost of th…